• 수산해양기술연구
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• 제32권3호
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• pp.257-265
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• 1996

The combined hydroacoustic and bottom trawl surveys were conducted in the Cheju southeastern area by the training ship "KAYA" belong to Pukyong National University in July 1995 and the traning ship "NAGASAKI MARl]" belong to Nagasaki University in April 1994, respectively. The main purpose of the investigations was to provide the basic data for the management and the biomass estimation of commercially important demersal fish stocks in this area. Fish samples were collected by bottom trawling from 10 trawl stations randomly selected in the survey area, and the species and length compositions of trawl catches were examined. The fish school target strength for demersal fish aggregations was related to the catchability of trawl net with a 90 mm mesh codend. The most abundant species in the 1995 trawl stations were Japanese flying squid, sword tip squid and red horsehead and that of the 1994 trawl stations Japanese flying squid and blackmouth goosefish. The average weight per cubic meter of trawl catches collected by bottom trawling in the Cheju southeastern area were $1.0791{\times}lO^-4$kg/$m^3$ in the 1994 survey area and $1.3636{\times}lO^-4$kg/$m^3$ in the 1995 survey area, respectively. The catch data by cover net suggest that the efficiency of trawl net could affect the weight normalized target strength values for demersal fish aggregations. That is, the average target strength per unit of weight dropped from - 33.1 dB/kg using the total catch by codend and cover net to - 30.5 dB/kg using only the catch data by codend, and a change of2.6 dB/kg was observed.ange of2.6 dB/kg was observed.

• Safety and Health at Work
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• 제8권1호
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• pp.94-98
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• 2017

Background: Physical activity (PA) is ranked as a leading health indicator and the workplace is a key setting to promote PA. The purpose of this study was to examine how goal-setting and exercise self-efficacy (SE) during a health promotion program influenced PA level among Japanese workers. Methods: Using a cross-sectional study design, we surveyed 281 employees. The short version of the International Physical Activity Questionnaire was used to assess PA level. Exercise SE was assessed using a partially modified version of Oka's exercise SE scale. Personal goals were assessed as the total numbers of "yes" responses to five items regarding "details of personal goals to perform PA". A mediational model was used to examine whether exercise SE mediates between the number of personal goals and PA level. Results: The mean age of the participants was 46.3 years, 76.2% were men, and the most common occupational category was software engineer (30.6%). The average PA level per week exceeded the recommended level in 127 participants (45.2%). One hundred and eighty-four participants (65.5%) set some form of concrete personal goal to perform PA. The relationship between the number of personal goals and PA level was mediated by exercise SE. Conclusion: Our study showed that exercise SE mediates goal-setting and increases PA. The results suggest that the components of PA promotion programs should be tailored to enhance participants' confidence in performing PA.

• Journal of Dental Anesthesia and Pain Medicine
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• 제18권6호
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• pp.361-365
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• 2018

Background: Recently, we examined the effects of 2% lidocaine gel on the tactile sensory and pain thresholds of the face, tongue and hands of symptom-free individuals using quantitative sensory testing (QST); its effect was less on the skin of the face and hands than on the tongue. Consequently, instead of 2% lidocaine gel, we examined the effect of 8% lidocaine spray on the tactile sensory and pain thresholds of the skin of the face and hands of healthy volunteers. Methods: Using Semmes-Weinstein monofilaments, QST of the skin of the cheek and palm (thenar skin) was performed in 20 healthy volunteers. In each participant, two topical sprays were applied. On one side, 0.2 mL of 8% lidocaine pump spray was applied, and on the other side, 0.2 mL of saline pump spray was applied as control. In each participant, QST was performed before and 15 min after each application. Pain intensity was measured using a numeric rating scale (NRS). Results: Both the tactile detection threshold and filament-prick pain detection threshold of the cheek and thenar skin increased significantly after lidocaine application. A significant difference between the effect of lidocaine and saline applications was found on the filament-prick pain detection threshold only. NRS of the cheek skin and thenar skin decreased after application of lidocaine, and not after application of saline. Conclusion: The significant effect of applying an 8% lidocaine spray on the sensory and pain thresholds of the skin of the face and hands can be objectively scored using QST.

• 디자인융복합연구
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• 제15권5호
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• pp.199-211
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• 2016

본 연구는 일본 나가사키시 지역에 거주하는 고령자가 거주지역의 물리적 환경을 어느 정도 고령친화적이라고 인지하고 있으며 이는 고령자의 특성에 따라 어떠한 차이를 보이는지를 파악하기 위한 것이다. 조사대상은 일본 나가사키시에 거주하는 60세 이상 고령자 96명이었으며 조사내용은 고령자와 관련된 근린생활시설의 위치와, 보행로, 교통, 노인공동주택의 제공정도, 주택 내부공간, 주택 내부공간의 휠체어 사용편리성의 5개 영역으로 구성된 지역환경의 고령친화도이다. 자료수집은 일대일 면접조사방법으로 하였다. 조사결과, 첫째, 고령자의 일상생활과 밀접한 관련이 있는 대부분의 근린생활시설들이 도보거리 내에 있거나 버스로 10분 이내의 비교적 가까운 거리 내에 위치하고 있었다. 둘째, 지역환경의 5개 영역 중 교통환경과 주택 내부공간, 보행로 영역은 전반적으로 고령친화적으로 되어 있는 반면 노인주택의 제공정도와 주택 내부공간의 휠체어 사용편리성은 다소 미흡하였다. 셋째, 조사대상 고령자의 특성 중 성별과 학력에 따라서는 지역환경의 고령친화도에 대한 인지가 유의미하게 차이를 보였다.

• 대한수학회지
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• 제37권5호
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• pp.763-777
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• 2000

We investigate the existence of group invariant solutions of the Emden-Fowler equation, - u=$\mid$x$\mid$$\sigma$$\mid$u$\mid$p-1u in B, u=0 on B and u(gx)=u(x) in B for g G. Here B is the unit ball in n 2, 1$\sigma$ 0 and G is a closed subgrop of the orthogonal group. A soultion of the problem is called a G in variant solution. We prove that there exists a G invariant non-radial solution if and only if G is not transitive on the unit sphere.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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• pp.1302-1305
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• 1997

A new approach to the three-dimensional measurement of the object surface and moving particles is introduced. A single TV camera with an apparatus to add the circular bias to the image enables us to record the three-dimensional information of measuring points as streaks on a single image. Every shaped of the streak on the image plane is related to the position of the measuring point. the information is extracted form the image using an image processign technique.

• 한국화재소방학회논문지
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• 제19권2호
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• pp.13-19
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• 2005

GIS를 이용하여 소방훈련을 위한 가상 모의기법에 대한 방안을 개발하였으며 실제 연구대상지역(일본 나가사키)의 항공 사진을 토대로 계측된 계단, 공간상의 건물 고도 등을 도식화하여 3차원으로 구현하였다. 또한 IPT 기법을 이용한 실제 다중 음향의 구현과 함께 대상지역을 디지털 지도화하였다. 그 결과 이용자는 다양한 각도에서 가상현실을 체험할 수 있으며 또한 소방활동에 이용될 것이다.

• 한국생활과학회지
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• 제13권5호
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• pp.765-776
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• 2004

The objectives of this study are to compare the levels of materialism with hedonic-utilitarian shopping values among 645 college students in Ulsan and Seoul, Korea; Columbus, Ohio, USA; and Nagasaki, Japan, and to analyze the impact of materialism on hedonic-utilitarian shopping values. As for the levels of hedonic shopping values, the students in Japan and Ulsan had the highest of all, whereas for the levels of utilitarian shopping values, those in Ulsan had the highest. For the levels of materialism, the students in Ulsan had the highest of all and those in Seoul had the lowest. And three scales in the materialism had a different influence on hedonic-utilitarian shopping values.

• 동력기계공학회지
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• 제16권6호
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• pp.19-23
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• 2012

DME HCCI기관의 단점은 디젤 엔진에 비해 기관부하 영역이 굉장히 좁다는 것이고 이는 저온산화반응이 너무 빨리 일어나서 노크를 발생시키기 때문이다. 저온산화반응을 억제하기 위해서 DME 연소에 미치는 천연가스의 영향을 실험한 결과, 천연가스가 DME의 저온산화반응을 억제시키기 때문에 기관부하영역이 확대된다는 것을 알았다. 본 연구에서는 서로 다른 세탄가를 가진 첨가연료가 DME 저온산화반응에 미치는 영향을 실험적으로 조사하였다. 그 결과 저온산화반응의 최고 열발생율은 세탄가에 의존하지 않지만 착화온도는 세탄가에 의존한다는 사실을 밝혔다.

• Fisheries and Aquatic Sciences
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• 제4권3호
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• pp.120-129
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• 2001

Thirty-six dinoflagellate cysts, representing 15 genera were identified in the surface sediments obtained from the northwestern East China Sea. Three cyst morphotypes found in this survey have not previously been described in the East China Sea and adjacent waters: Seleno­pemphix sp. 2, Selenopemphix sp. 3 and Trinovantedinium sp. 1. In the northwestern East China Sea, Operculodinium centrocarpum, Spiniferites bulloideus and ellipsoidal cysts of Alexandrium were commonly observed. Moreover, it was recognized that the ellipsoidal cysts of Alexandrium, whose motile cells of A tamarense and/or A catenella are responsible to paralytic shellfish poisoning, distributed not only restricted to the coastal areas but also to the offshore stations far from the Changjiang River mouth.